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the mitral and tricuspid valves

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Q: What structures prevent blood in the ventricles from backing up into the atrium?
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Related questions

What are the inferior chambers of the heart called?

the ventricles


What prevent the blood from flowering back from the ventricles the atrium?

The circulatory system has a series of one-way valves built in which prevents blood flowing backwards.


What connects atrium s to ventricles?

bundle branches


What is a atria and ventricles?

atriums and ventricles are apart of the four parts of your heart ventricles are on the bottom and atrium's are on the top hope this helped =D


What are the upper chambers of the heart and their function?

right and left atrium. they collect and hold blood before sending them into the ventricles where they are pumped to all parts of the body.right and left atrium. they collect and hold blood before sending them into the ventricles where they are pumped away from the heart.right and left atrium. they collect and hold blood before sending them into the ventricles where they are pumped to all parts of the body.


Where is the atrium biologically?

The right atrium and left atrium (plural atria) are the upper chambers of the heart. They are superior to the right and left ventricles, respectively.


What chambers are the pumping chambers of heart?

ventricles


What are the four chambers of the heart are called?

The four chambers are; Left atrium Right atrium Left Ventricle Right Ventricle The two upper chambers are called atria (singular: atrium) and the two lower chambers are called ventricles. There are four chambers of the heart - the right atrium, left atrium, right ventricle and left ventricle.


What are the bottom two chambers of the heart called?

They are the atria (atrium singular). There are two. They are above the ventricles, and are smaller. Their job is to pump the blood to the ventricles. There is a left and a right atrium, and each pumps to their same-side ventricle. The term "auricle" was previously applied to an atrium, but now is used to identify a specific section of the chamber.


What do the bicuspid and tricuspid do?

To prevent the back flow of blood into the left and right atrium when the ventricles contract


What are the two lower chambers of the heart?

If I am not wrong the lower two chambers of the heart are called as ventricles i.e. left ventricle and right ventricle while the upper two chambers of the heart are called as atria( plural of atrium) i.e. left atrium and right atrium.


Where does atrium travel to?

The two atria (right atrium and left atrium) of the heart travel (force blood) to the ventricles (right ventricle and left ventricle), respectively.